Checker 3

Notes: This is an alternate take on the checker program. In this version the squares are actually child windows to the main window. This makes a lot of the logic simpler since each window only has to deal with its own little section.

Description: A screenshot of a program in front of a window containing code. The program has a series of horizontal and vertical lines that create a grid. Some of the boxes in the grids have a line going from the upper left corner to the bottom right corner and a line going from the upper right corner to the bottom left corner.